 Removing broken bolt(s) from trailing arm mounts |
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| tazz9924 |
 Apr 22 2018, 01:52 AM
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#1
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Senior Member  Group: Members Posts: 703 Joined: 31-May 15 From: Mooresville NC Member No.: 18,779 Region Association: None  |
So I broke another bolt off in my rear right trailing arm pick up (the one behind the rocker panel) and i need suggestions for getting it out
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| mb911 |
Apr 22 2018, 05:38 AM
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#2
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914 Guru Group: Members Posts: 6,802 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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QUOTE(tazz9924 @ Apr 21 2018, 11:52 PM)  So I broke another bolt off in my rear right trailing arm pick up (the one behind the rocker panel) and i need suggestions for getting it out Drilling id really your only option |
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| Mblizzard |
Apr 22 2018, 07:16 AM
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#3
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
Can you add a picture? I am assuming it is still one?
These bolts are very susceptible to rust and fatigue. There are suppose to be some rubber caps on top. If you can’t see the the bolt from the top remove these and use a penetrating oil. I like PB Blaster. It is unlikely any part of the bolt is above the retaining bracket so welding on a nut is likely not an option but heathy will help! Sometimes I am reluctant to use a torch so I use a heat gun. Takes a very long time but can heat enough to have an impact. The like said above you can drill and try a reverse thread extractor. If it is really tight you may have to drill and tap for larger reverse thread bolt. When done replace all of the bolts with new stainless steel ones and use anti seize on the bolts. |
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| 914forme |
Apr 22 2018, 07:53 AM
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#4
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None
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Tangerine makes a replacement for the threaded insert section if you need it.
Tangerine - Trailing Arm Threaded Mounting Sleeve "The rear outer suspension consoles each have three of these. Our piece is an accurate repro of the factory component. This sleeve makes a quality repair possible if you are unable to repair the threads after breaking a bolt. A 7/8" hole saw will cut through the top weld on the console making it easy to remove the old sleeve." It is a backup to a problem that exists. Also there are plastic plugs at the top of these sleeves. You can add some penetrate. Take a punch and drop it in the top and top the top of the bolt. Rinse and repeat until your ready to give it a try. I have a set of reverse drill bits to give it a fitting chance. Best of luck with this repair. |
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| mb911 |
Apr 22 2018, 09:08 AM
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#5
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914 Guru Group: Members Posts: 6,802 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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QUOTE(914forme @ Apr 22 2018, 05:53 AM) Tangerine makes a replacement for the threaded insert section if you need it. Tangerine - Trailing Arm Threaded Mounting Sleeve "The rear outer suspension consoles each have three of these. Our piece is an accurate repro of the factory component. This sleeve makes a quality repair possible if you are unable to repair the threads after breaking a bolt. A 7/8" hole saw will cut through the top weld on the console making it easy to remove the old sleeve." It is a backup to a problem that exists. Also there are plastic plugs at the top of these sleeves. You can add some penetrate. Take a punch and drop it in the top and top the top of the bolt. Rinse and repeat until your ready to give it a try. I have a set of reverse drill bits to give it a fitting chance. Best of luck with this repair. Well that is a fantastic repair. I have never seen that before and would definitely do that next time.. |
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| tazz9924 |
Apr 22 2018, 10:59 AM
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#6
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Senior Member Group: Members Posts: 703 Joined: 31-May 15 From: Mooresville NC Member No.: 18,779 Region Association: None |
QUOTE(914forme @ Apr 22 2018, 06:53 AM) Tangerine makes a replacement for the threaded insert section if you need it. Tangerine - Trailing Arm Threaded Mounting Sleeve "The rear outer suspension consoles each have three of these. Our piece is an accurate repro of the factory component. This sleeve makes a quality repair possible if you are unable to repair the threads after breaking a bolt. A 7/8" hole saw will cut through the top weld on the console making it easy to remove the old sleeve." It is a backup to a problem that exists. Also there are plastic plugs at the top of these sleeves. You can add some penetrate. Take a punch and drop it in the top and top the top of the bolt. Rinse and repeat until your ready to give it a try. I have a set of reverse drill bits to give it a fitting chance. Best of luck with this repair. I didn’t realize they were sleeved, thats good to know! Ill give it a try with some taps and a reverse drill bit or extractor and see what i can do |
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| mlindner |
Apr 22 2018, 11:05 AM
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#7
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Senior Member Group: Members Posts: 1,511 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest
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914forme, thanks for sharing, great solution. Mark
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| bulitt |
Apr 22 2018, 11:29 AM
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#8
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
QUOTE(914forme @ Apr 22 2018, 09:53 AM) Tangerine makes a replacement for the threaded insert section if you need it. Tangerine - Trailing Arm Threaded Mounting Sleeve "The rear outer suspension consoles each have three of these. Our piece is an accurate repro of the factory component. This sleeve makes a quality repair possible if you are unable to repair the threads after breaking a bolt. A 7/8" hole saw will cut through the top weld on the console making it easy to remove the old sleeve." It is a backup to a problem that exists. Also there are plastic plugs at the top of these sleeves. You can add some penetrate. Take a punch and drop it in the top and top the top of the bolt. Rinse and repeat until your ready to give it a try. I have a set of reverse drill bits to give it a fitting chance. Best of luck with this repair. (IMG:style_emoticons/default/agree.gif) Drill it out, weld it in, done... |
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